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1. (WO2018204648) DISPLAY DEVICES CONTAINING POLYMERIC FILMS

Pub. No.:    WO/2018/204648    International Application No.:    PCT/US2018/030896
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Fri May 04 01:59:59 CEST 2018
IPC: H01L 51/52
H01L 27/32
H01L 51/00
Applicants: 3M INNOVATIVE PROPERTIES COMPANY
Inventors: HAO, Encai
YANG, Zhaohui
EVERAERTS, Albert I.
LU, Yongshang
KOLB, William Blake
BRUESEWITZ, Keith R.
Title: DISPLAY DEVICES CONTAINING POLYMERIC FILMS
Abstract:
Display devices that include: an organic light emitting diode panel having a multilayer construction including one or more adhesive films; and a polymeric film incorporated within the multilayer construction of the organic light emitting diode panel. The polymeric film includes: a first polymeric layer having two major surfaces, wherein the first polymeric layer includes: a first polymer region including a first material having a refractive index of n1; a second region including a network of interconnected pores and channels within the first polymer region; wherein the pores and channels comprise a second material having a refractive index of n2; wherein n1 is different than n2; wherein the first material includes a first elastic polymeric material and optional particles; and wherein the second material includes: a second polymeric material and optional particles; and/or air; and wherein the polymeric film has: a clarity of at least 90%; a visible light transmission of at least 80%; and a bulk haze of 25% to 80%.